CN109729682B - Flexible printed circuit FPC fixing device - Google Patents
Flexible printed circuit FPC fixing device Download PDFInfo
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- CN109729682B CN109729682B CN201910152912.3A CN201910152912A CN109729682B CN 109729682 B CN109729682 B CN 109729682B CN 201910152912 A CN201910152912 A CN 201910152912A CN 109729682 B CN109729682 B CN 109729682B
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Abstract
The embodiment of the invention discloses a flexible circuit board FPC fixing device, which comprises a bottom plate and a retaining wall arranged on the bottom plate, wherein the bottom plate and the retaining wall can form an accommodating area for mounting a circuit part, the circuit part comprises an FPC, the FPC fixing device also comprises a fixing part, when the circuit part is mounted in the accommodating area, a first side surface of the circuit part can be contacted with the fixing part, and a second side surface of the circuit part can be contacted with the retaining wall. In the embodiment of the invention, the fixed part, the bottom plate and the retaining wall can form a fixed space, so that the circuit part can be fixed by placing the circuit part in the fixed space, and the operation is simple and convenient to realize; in addition, the circuit component does not need to be provided with the back adhesive, so that the technical problem that the circuit component is stuck on the retaining wall by the back adhesive when not contacting the bottom plate can be solved.
Description
Technical Field
The invention relates to the technical field of terminals, in particular to a flexible printed circuit FPC fixing device.
Background
In the wearable device, the side key is an important component, and a user can control a side key Flexible Circuit board (FPC) matched with the side key to execute relevant instructions, such as instructions for starting the device, closing the device or pausing the device, by triggering the side key. During the assembly of the side key FPC, the side key FPC may be generally fixed to the housing structure of the wearable device, for example, the side key FPC may be fixed to a retaining wall inside the housing. At present, how to effectively fix the side key FPC and the housing retaining wall is very critical to ensure the normal use of the side key.
The prior art usually adopts the mode of gum paste to fix the side key FPC on the casing keeps off the wall. In one example, as shown in fig. 1, when assembling the side key FPC101, a back adhesive may be provided on a side of the side key FPC101 opposite to the housing retaining wall 102, and by assembling the side key FPC101 provided with the back adhesive from the housing upper portion to the housing bottom portion, the side key FPC101 and the housing retaining wall 102 may be pasted together for the purpose of fixing the side key FPC 101. However, in the actual operation process, the installation space of the side key FPC reserved in the housing is narrow, and when the side key FPC is not yet assembled to the bottom of the housing, the back glue on the side face of the side plate FPC opposite to the retaining wall of the housing is already adhered to the retaining wall of the housing, so that the side plate FPC is fixed in the middle of the retaining wall and cannot be continuously assembled or even taken out, and the subsequent operation is very difficult and difficult to realize.
In summary, there is a need for a flexible printed circuit FPC fixing device to solve the technical problems of difficult operation and difficult realization caused by adhesive tape during the assembly of the side key FPC.
Disclosure of Invention
The embodiment of the invention provides a flexible circuit board FPC fixing device, which is used for solving the technical problems of difficult operation and difficult realization caused by back glue adhesion in the assembly process of a side key FPC.
The FPC fixing device provided by the embodiment of the invention comprises a bottom plate and a retaining wall arranged on the bottom plate; the bottom plate and the retaining wall form an accommodating area for mounting a circuit component, and the circuit component comprises an FPC;
the FPC fixing device further comprises a fixing part, wherein when the circuit part is installed in the accommodating area, the first side face of the circuit part is in contact with the fixing part, and the second side face of the circuit part is in contact with the retaining wall.
Optionally, the fixing part is a fixing structure integrally formed with the bottom plate and disposed on the bottom plate.
Optionally, the fixing part is a wedge-shaped structure; the circuit component is mounted in the accommodating area and includes: the bottom plate, the retaining wall and the fixing part form a groove, and the circuit part is embedded into the groove.
Optionally, a first side of the fixing part opposite to the retaining wall is provided with a protruding structure, and a second side of the circuit part is provided with a groove-shaped structure corresponding to the protruding structure; when the circuit component is embedded into the groove, the protruding structure is matched with the groove-shaped structure, so that the circuit component is fixed in the groove.
Optionally, the FPC fixing device further includes a side plate disposed opposite to the retaining wall, and a slide for mounting the fixing member is disposed on the side plate.
Optionally, the fixing part is a plate-shaped structure, the side surface of the plate-shaped structure is bent, and the bent plate-shaped structure comprises a first part and a second part fixedly arranged with the first part;
the circuit component is mounted in the accommodating area and includes: the fixing part is mounted on the side plate through the first part and the slide way, and the bottom surface of the second part is in contact with the circuit part, so that the circuit part is mounted in the accommodating area.
Optionally, a side of the baffle wall opposite to the circuit component is provided with a first slot and a second slot, the first slot and the second slot are communicated, the first slot is used for injecting colloidal liquid, and the second slot is used for accommodating the injected colloidal liquid;
after the colloidal liquid is solidified, the circuit component is fixedly connected with the retaining wall.
Optionally, the depth of the first slot is less than the depth of the second slot.
Optionally, the circuit component further comprises a steel sheet; the steel sheet and the side key FPC are fixedly bonded.
The electronic equipment provided by the embodiment of the invention comprises the FPC fixing device provided by the embodiment of the invention.
In the above embodiments of the present invention, the FPC fixing device for the flexible circuit board includes a base plate, and a retaining wall provided on the base plate, the base plate and the retaining wall may form an accommodating area for mounting the circuit part, the circuit part includes the FPC, and the FPC fixing device may further include a fixing part, when the circuit part is mounted in the accommodating area, a first side of the circuit part may contact the fixing part, and a second side of the circuit part may contact the retaining wall. In the embodiment of the invention, the fixed part, the bottom plate and the retaining wall can form a fixed space, so that the circuit part can be fixed by placing the circuit part in the fixed space, and the operation is simple and convenient to realize; in addition, the circuit component does not need to be provided with the back adhesive, so that the technical problem that the circuit component is stuck on the retaining wall by the back adhesive when not contacting the bottom plate can be solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a conventional FPC fixing device for a flexible circuit board according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an FPC fixing device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a fixing member according to an embodiment of the present invention;
fig. 4 is a schematic view illustrating an assembly of a fixing member and a circuit member according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another fixing component according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The flexible printed circuit FPC fixing device in the embodiment of the present invention may be used to fix a circuit component on an electronic device, and the electronic device may be a mobile phone, a notebook computer, a Personal Digital Assistant (PDA), a Digital camera, a Liquid Crystal display Module (Liquid Crystal display Module), and the like, and is not particularly limited.
In one example, the circuit component may include an FPC, which may be a flexible circuit board disposed inside the electronic device and connected to a functional component disposed on a housing of the electronic device, and which may be used to implement a preset function of the electronic device. Taking the side key FPC arranged in the mobile phone for realizing the function of the side key as an example, when a user does not press the side key, a reserved gap can exist between the side key FPC and the key arranged on the shell of the mobile phone; when a user presses the side key, the side key can contact with the side key FPC to trigger the side key function of the side key FPC. It should be noted that, only the side key function of the FPC is described here, and in a specific implementation, the FPC may be connected to a microphone and/or a speaker of an electronic component, etc., to trigger the microphone function and/or the speaker function of the FPC, which is not limited specifically.
Fig. 2 is a schematic structural diagram of an FPC fixing device according to an embodiment of the present invention, as shown in fig. 2, the FPC fixing device may include a bottom plate 100 and a retaining wall 200 disposed on the bottom plate 100, and the bottom plate 100 and the retaining wall 200 may form a receiving area for mounting a circuit component 300. Among them, the circuit part 300 may include an FPC.
In a specific implementation, the FPC fixing device may further include a fixing member 400, and when the circuit member 300 is mounted in the accommodating area, a first side of the circuit member 300 may contact the fixing member 400, and a second side of the circuit member 300 may contact the retaining wall 200.
In the embodiment of the invention, the fixed part, the bottom plate and the retaining wall can form a fixed space, so that the circuit part can be fixed by placing the circuit part in the fixed space, and the operation is simple and convenient to realize; compared with the mode of fixing the circuit component by using the gum in the prior art, the circuit component is not required to be provided with the gum, so that the technical problem that the circuit component is stuck on the retaining wall by the gum when not contacting the bottom plate can be solved.
In one possible implementation, the fixing part 400 may be a fixing structure provided on the base plate 100 and integrally formed with the base plate 100. In actual operation, a mold opening mold may be provided according to the structure of the fixing member 400 and the bottom plate 100, so that a structural member obtained by performing punch forming or pouring forming based on the mold opening mold is a structural member in which the fixing member 400 and the bottom plate 100 are integrated. In the embodiment of the present invention, the fixing member 400 is integrally formed with the bottom plate 100, so that the process flow can be simplified and the implementation is facilitated.
Fig. 3 is a schematic structural diagram of a fixing component 400 according to an embodiment of the present invention, as shown in fig. 3, the fixing component 400 may be integrally formed with the base plate 100, and the fixing component 400 may be a fixing structure extending from the base plate 100. Specifically, the base plate 100, the retaining walls 200 and the fixing member 400 may form a groove, so that the circuit member 300 is fixed in the FPC fixing device by fitting the circuit member 300 into the groove.
In particular implementations, the structure of the fixing member 400 may be various, and in one example, the fixing member 400 may be a wedge-shaped structure (as shown in fig. 3), and the circuit component 300 may be more easily placed in the groove by providing the fixing member 400 with the wedge-shaped structure. In this example, the fixing member 400 may be provided with a protrusion 401 on a side thereof opposite to the retaining wall 200, and the protrusion 401 may be engaged with the circuit member 300 when the circuit member 300 is inserted into the recess, thereby performing a fixing function. In a specific implementation, the protruding structure 401 may be a cylindrical structure, or may also be a plate-shaped structure, or may also be an annular structure, and is not limited specifically.
Fig. 3 is merely an exemplary illustration of the structure of the fixing part 400, and in other examples, the fixing part 400 may also be other structures, such as a column structure, a plate structure, and the like, which are not limited in particular.
Taking the structure of the fixing component 400 illustrated in fig. 3 as an example, fig. 4 is an assembly diagram of the fixing component 400 and the circuit component 300 according to an embodiment of the present invention. As shown in fig. 4, when the circuit member 300 is mounted in the recess, the FPC301 on the circuit member 300 may be fitted with the projection structure 401, and the circuit member 300 may be fixed in the recess by mounting the bottom of the circuit member 300 at the bottom of the recess.
As shown in fig. 4, in an example, the circuit component 300 may further include a steel sheet 302, and the steel sheet 302 may be fixed to the FPC301 by adhesion, for example, a back adhesive may be provided on a side of the steel sheet 302 opposite to the FPC301 in advance, so as to adhere the steel sheet 302 to the FPC 301. In the embodiment of the invention, the steel sheet and the FPC are adhered and fixed, so that the rigidity of the circuit component can be enhanced, and the safety of the circuit component is ensured; and the steel sheet can make FPC and recess fixed fastening more to guarantee that FPC is difficult for taking place to scratch, improve user's experience and feel.
In another possible implementation, the fixing member 400 may be a fixing structure designed to be separated from the base plate 100. In practical operation, if the circuit component 300 is not required to be fixed, the fixing component 400 can be detached from the base plate 100, thereby saving space; if it is necessary to fix the circuit member 300, the fixing member 400 may be engaged with the base plate 100, and the circuit member 300 may be fixed to the base plate 100 by the engaged fixing member 400. In the embodiment of the present invention, by separately designing the fixing member 400 and the chassis 100, when the fixing member 400 is damaged, the FPC fixing device can be repaired by replacing the fixing member 400 without replacing the entire FPC fixing device, thereby simplifying the operation and saving the cost.
Fig. 5 is a schematic structural diagram of another fixing component 400 according to an embodiment of the present invention, as shown in fig. 5, the fixing component 400 may be a plate-shaped structure, a side surface of the plate-shaped structure may be bent, and the bent plate-shaped structure may include a first component 402 and a second component 403 fixedly disposed with the first component 402. In this example, the second part 403 may limit the movement of the circuit component 300 in the Z-axis after the circuit component 300 is installed in the accommodating area, so as to avoid the circuit component 300 from scraping and achieve the fixing purpose.
In a specific implementation, the FPC fixing device may further include a side plate 500 disposed opposite to the retaining wall 200, and the fixing member 400 may be movably connected to the side plate 500, thereby fixing the circuit member 300 in the receiving area. Various manners of movably connecting the fixing part 400 and the side plate 500 may be provided, for example, a buckle may be disposed on the fixing part 400, a groove may be disposed on the side plate 500, and the fixing part 400 and the side plate 500 may be movably connected through the buckle and the groove; or a cross pin can be arranged on the fixing part 400, a gourd hole can be arranged on the side plate 500, and the fixing part 400 and the side plate 500 can be movably connected through the cross pin and the gourd hole.
Taking the structure of the fixing part 400 illustrated in fig. 5 as an example, in a specific implementation, the side plate 500 may be provided with a slide 501 for installing the fixing part 400, wherein the width of the slide 501 may be the same as the width of the first part 402, or may be smaller than the width of the first part 402. If the width of the slide 501 is the same as the width of the first member 402, the fixing member 400 can be mounted on the side plate 500 by the first member 402 cooperating with the slide 501; if the width of the sliding channel 501 is smaller than the width of the fixing member 400, a protruding structure corresponding to the sliding channel 501 may be disposed on the first member 402, and the fixing member 400 may be mounted on the side plate 500 by the protruding structure disposed on the first member 402 and the sliding channel 501. When the fixing member 400 is mounted on the side plate 500, the bottom surface of the second member 403 may contact the circuit member 300 such that the circuit member 300 is mounted in the receiving area.
As shown in fig. 4, in one example, the retaining wall 200 may further be provided with a first slot 201 and a second slot 202 on a side surface opposite to the circuit component 300, the first slot 201 and the second slot 202 may be communicated, and a depth of the first slot 201 may be smaller than a depth of the second slot 202. In a specific implementation, after the circuit component 300 is installed in the accommodating area, a colloidal liquid may be injected through the first slot 201, and the glue liquid may enter the second slot 202 along with the first slot 201. After the adhesive liquid is dried, if the circuit component 300 only includes the FPC301, the adhesive liquid may stick the FPC301 on the side of the retaining wall 200 opposite to the fixing component 300, thereby fixing the circuit component 300 in the accommodating area; if the circuit component 300 comprises the FPC301 and the steel sheet 302, the adhesive liquid can fix the FPC301 adhered and fixed with the steel sheet 302 in the accommodating area by adhering the steel sheet 302 on the side of the retaining wall 200 opposite to the fixing component 300, thereby fixing the circuit component 300.
From the above, it can be seen that: in the above embodiments of the present invention, the FPC fixing device for the flexible circuit board includes a base plate, and a retaining wall provided on the base plate, the base plate and the retaining wall may form an accommodating area for mounting the circuit part, the circuit part includes the FPC, and the FPC fixing device may further include a fixing part, when the circuit part is mounted in the accommodating area, a first side of the circuit part may contact the fixing part, and a second side of the circuit part may contact the retaining wall. In the embodiment of the invention, the fixed part, the bottom plate and the retaining wall can form a fixed space, so that the circuit part can be fixed by placing the circuit part in the fixed space, and the operation is simple and convenient to realize; in addition, the circuit component does not need to be provided with the back adhesive, so that the technical problem that the circuit component is stuck on the retaining wall by the back adhesive when not contacting the bottom plate can be solved.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. A FPC fixing device of a flexible circuit board is characterized by comprising a bottom plate and a retaining wall arranged on the bottom plate; the bottom plate and the retaining wall form an accommodating area for mounting a circuit component, and the circuit component comprises an FPC;
the FPC fixing device also comprises a fixing component, when the circuit component is arranged in the accommodating area, a first side surface of the circuit component is contacted with the fixing component, and a second side surface of the circuit component is contacted with the retaining wall;
the fixing component and the bottom plate are designed in a split mode, and the fixing component comprises a first component and a second component fixedly arranged with the first component; the FPC fixing device also comprises a side plate arranged opposite to the retaining wall, a slide way is arranged on the side plate, the fixing part is arranged on the side plate through the first part and the slide way, and the bottom surface of the second part is contacted with the circuit part, so that the circuit part is arranged in the accommodating area;
a first open groove and a second open groove are formed in the side face, opposite to the circuit component, of the baffle wall, the first open groove is communicated with the second open groove, the first open groove is used for injecting colloidal liquid, and the second open groove is used for containing the injected colloidal liquid;
after the colloidal liquid is solidified, the circuit component is fixedly connected with the retaining wall.
2. The FPC fixture of claim 1, wherein the fixing member is a wedge-shaped structure;
the circuit component is mounted in the accommodating area and includes: the bottom plate, the retaining wall and the fixing part form a groove, and the circuit part is embedded into the groove.
3. The FPC fixing device of claim 2, wherein a first side of the fixing member opposite to the retaining wall is provided with a protruding structure, and a second side of the circuit member is provided with a groove-shaped structure corresponding to the protruding structure;
when the circuit component is embedded into the groove, the protruding structure is matched with the groove-shaped structure, so that the circuit component is fixed in the groove.
4. The FPC holding device of claim 1, wherein the holding member is a plate-like structure having a side surface formed in a bent shape, and the bent plate-like structure includes a first member and a second member fixedly provided to the first member.
5. The FPC fixing device of any of claims 1 to 4, wherein a depth of the first slot is less than a depth of the second slot.
6. The FPC fixing device according to any one of claims 1 to 4, wherein the circuit member further includes a steel sheet; the steel sheet is fixedly bonded with the FPC.
7. An electronic device characterized in that it comprises a flexible circuit board FPC fixture as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910152912.3A CN109729682B (en) | 2019-02-28 | 2019-02-28 | Flexible printed circuit FPC fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910152912.3A CN109729682B (en) | 2019-02-28 | 2019-02-28 | Flexible printed circuit FPC fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109729682A CN109729682A (en) | 2019-05-07 |
| CN109729682B true CN109729682B (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910152912.3A Active CN109729682B (en) | 2019-02-28 | 2019-02-28 | Flexible printed circuit FPC fixing device |
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| CN (1) | CN109729682B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112162594B (en) * | 2020-09-08 | 2023-03-10 | 华为技术有限公司 | Electronic device |
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| KR20150067671A (en) * | 2013-12-10 | 2015-06-18 | 엘지전자 주식회사 | Mobile terminal |
| CN205039860U (en) * | 2015-08-21 | 2016-02-17 | 上海与德通讯技术有限公司 | Button module and electronic equipment |
| CN205211633U (en) * | 2015-12-11 | 2016-05-04 | 上海与德通讯技术有限公司 | Side key , side key subassembly and electronic equipment |
| CN206686226U (en) * | 2017-02-14 | 2017-11-28 | 歌尔科技有限公司 | A kind of mobile terminal |
| CN206977877U (en) * | 2017-07-11 | 2018-02-06 | 深圳天珑无线科技有限公司 | Fixing structure for circuit board and electronic equipment |
| CN107846489A (en) * | 2017-11-30 | 2018-03-27 | 努比亚技术有限公司 | Side switch and mobile terminal |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205584612U (en) * | 2016-03-03 | 2016-09-14 | 上海与德通讯技术有限公司 | Side key FPC subassembly and electronic equipment |
| CN205407944U (en) * | 2016-03-10 | 2016-07-27 | 重庆蓝岸通讯技术有限公司 | Communication terminal side key's fixed knot constructs |
| CN205723261U (en) * | 2016-06-15 | 2016-11-23 | 维沃移动通信有限公司 | A kind of side key switch and electronic equipment |
| CN107087044A (en) * | 2017-05-16 | 2017-08-22 | 西安易朴通讯技术有限公司 | A kind of FPC attachment structures and terminal |
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2019
- 2019-02-28 CN CN201910152912.3A patent/CN109729682B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150067671A (en) * | 2013-12-10 | 2015-06-18 | 엘지전자 주식회사 | Mobile terminal |
| CN205039860U (en) * | 2015-08-21 | 2016-02-17 | 上海与德通讯技术有限公司 | Button module and electronic equipment |
| CN205211633U (en) * | 2015-12-11 | 2016-05-04 | 上海与德通讯技术有限公司 | Side key , side key subassembly and electronic equipment |
| CN206686226U (en) * | 2017-02-14 | 2017-11-28 | 歌尔科技有限公司 | A kind of mobile terminal |
| CN206977877U (en) * | 2017-07-11 | 2018-02-06 | 深圳天珑无线科技有限公司 | Fixing structure for circuit board and electronic equipment |
| CN107846489A (en) * | 2017-11-30 | 2018-03-27 | 努比亚技术有限公司 | Side switch and mobile terminal |
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| CN109729682A (en) | 2019-05-07 |
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